Question: What was the population in Lille as of January 1, 2015?
Paraphrase: In January 2015, what was the population of Lille?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q648 p:P1082 ?s . ?s ps:P1082 ?obj . ?s pq:P585 ?x filter(contains(YEAR(?x),'2015')) }